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AVR - Automatic Voltage Regulator DSR

AVR - Automatic Voltage Regulator DSR

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El AVR DSR es un regulador automático de voltaje digital avanzado que moderniza el control de los generadores, siendo un estándar en los modelos ECO y ECP de Mecc Alte. Este regulador facilita el proceso de conexión gracias a sus 15 conectores de "fast on/fast off", lo que es ideal para reconectar máquinas de 12 cables a diferentes voltajes. Es compatible con todos los generadores ECO y ECP, y funciona de serie con los sistemas MAUX y PMG, eliminando la necesidad de cambiar de regulador. Su detección monofásica viene de fábrica. Además, el DSR permite la conexión externa a un ordenador (vía RS232 o USB) o a un PLC (vía RS485 y MODBUS) mediante una tarjeta de comunicación (DXR o DL1), lo que permite modificar ajustes, monitorear el rendimiento en tiempo real (voltaje, frecuencia o estado del DSR) y descargar informes de alarmas con el software de Mecc Alte.

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AVR - DSR is the automatic voltage regulator of the generator: it reads the output voltage and corrects the field excitation so the voltage stays stable as the load changes.

A failing AVR shows up before it dies: voltage dips 5–30 V when a large motor starts, lights flicker, or the control panel reboots. When it fails completely the set delivers only residual voltage or trips on overvoltage.

Specifications and compatibility

Applicable to
MECC ALTE
Dimensions
17 x 6,5 x 13 cm
Weight
2.00 kg

How to verify before ordering

  • Check that the reference printed on the AVR label (for example AS440, MX341, R120) matches exactly; variants differ in sensing range and excitation level.
  • Confirm the excitation input voltage and the generator type it serves. They are not interchangeable across generator makes or speed ranges.
  • Inspect wiring and brushes before replacing the module: a loose connection produces exactly the same symptoms as a burnt AVR.

Frequently asked questions

How do I know the fault is the AVR and not the generator?

Measure output voltage at steady load. If it is low and does not respond to the excitation trim, while windings and rotating diodes are healthy, the AVR is the suspect. A cross-test with a spare AVR confirms it in minutes.

Can the voltage be trimmed after installation?

Yes. Most of these regulators have a voltage and a stability trim pot. Set them at no load to the site nominal voltage, then verify under load before signing off.

Related parts

See the spare parts catalogue or request a quotation quoting the equipment reference. Third-party trademarks are cited for identification purposes only.

Specifications

Characteristics
Applicable To MECC ALTE
Weight 2,00 kg
Dimensions 17 x 6,5 x 13 cm
Spare Parts
Generator Parts AVR